It contains a large amount of medium-chain fatty acids can be replenished energy efficiently to provide a concentrated liquid diet less burden on the stomach and. The total content of the medium chain fatty acid having 10 carbon atoms and medium-chain fatty acid having a carbon number of 8 to be included as a constituent fatty acid triglyceride, enriched liquid food of the present invention, 2.5 to 8 per 100kcal energy of the concentrated liquid diet. A thick liquid diet is 0g, total in the medium-chain fatty acid having 10 carbon and medium-chain fatty acids of carbon number 8, the proportion of medium-chain fatty acid having a carbon number of 10 is 60% by mass or more, having a carbon number of 8 the proportion of medium-chain fatty acids is 40 mass% or less.エネルギーを効率良く補給することができる中鎖脂肪酸を多量に含有し、且つ胃への負担が少ない濃厚流動食を提供すること。本発明の濃厚流動食は、トリグリセリドの構成脂肪酸として含まれる炭素数8の中鎖脂肪酸と炭素数10の中鎖脂肪酸との合計含有量が、濃厚流動食のエネルギー100kcalあたり2.5~8.0gである濃厚流動食であって、該炭素数8の中鎖脂肪酸と炭素数10の中鎖脂肪酸との合計中、炭素数10の中鎖脂肪酸の占める割合が60質量%以上、炭素数8の中鎖脂肪酸の占める割合が40質量%以下である。
